Merge SRT Files — Sequential or Bilingual
Merge two SRT/VTT files — join sequential parts, or combine two languages into one bilingual track. In-browser.
Quick answer: Drop two subtitle files. Sequential mode joins them as-is (for multi-part files whose timings already account for part two). Bilingual mode aligns the second file's lines under the first's wherever their times overlap — the standard two-line dual-language track.
Drop the first subtitle file
Drop the second subtitle file
Sequential merge joins the cues as-is. If part two restarts at zero instead of continuing, shift it first with the subtitle shifter.
| Sequential | Concatenated as-is; use the shifter first if part two needs an offset |
|---|---|
| Bilingual | Secondary cue chosen by maximum time overlap with each primary cue |
| Formats | Each side independently SRT/VTT/ASS/SBV — mix freely |
| Output | SRT (or any target format via the converter) |
| Privacy | Runs in the browser; no upload |
What this tool does
Two reasons to merge subtitles, two modes. Sequential merge answers “my episode came in two .srt files”: the cues are concatenated in order, since properly authored parts already carry continuous timings — and if they do not, the page links the shifter to push part two forward first. Bilingual merge answers “I want original language and translation on screen together”: every cue of the primary track is matched to the secondary track's cue that overlaps it most in time, and its lines are appended underneath. Unmatched primary cues simply keep one language, and the page reports how many — so a mismatched pair is visible before you download.
Common uses
- A two-part episode or split recording needs one subtitle file
- Language-learning videos with native + translation lines
- Accessibility mixes: dialogue + [description] track combined
- Festival or fan releases that ship separate language files